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Why do sprinkler heads keep knocking when irrigating farmland? #Science #Decompression #Irrigation #

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The wisdom of the working people is to change the direction of force to move heavy objects. #Science

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Audiences in different periods look at astronomical toilet man

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Two mods to make your Minecraft more realistic

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Have scientists really discovered "negative time"?

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Why don’t animals and plants evolve to make themselves unpalatable to avoid being eaten?

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